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Foliar Application of Salicylic Acid Mitigates Saline Stress on Physiology, Production, and Post-Harvest Quality of Hydroponic Japanese Cucumber

Author

Listed:
  • Valeska Karolini Nunes Oliveira

    (Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil)

  • André Alisson Rodrigues da Silva

    (Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil)

  • Geovani Soares de Lima

    (Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil)

  • Lauriane Almeida dos Anjos Soares

    (Academic Unit of Agrarian Sciences, Federal University of Campina Grande, Pombal 58840-000, PB, Brazil)

  • Hans Raj Gheyi

    (Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil)

  • Claudivan Feitosa de Lacerda

    (Department of Agricultural Engineering, Federal University of Ceará, Fortaleza 60455-760, CE, Brazil)

  • Carlos Alberto Vieira de Azevedo

    (Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil)

  • Reginaldo Gomes Nobre

    (Department of Science and Technology, Federal Rural University of the Semi-Arid, Caraúbas 59780-000, RN, Brazil)

  • Lúcia Helena Garófalo Chaves

    (Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil)

  • Pedro Dantas Fernandes

    (Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil)

  • Vera Lúcia Antunes de Lima

    (Academic Unit of Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil)

Abstract

Salicylic acid (SA) is a phenolic compound capable of inducing physiological and metabolic changes that enhance the tolerance of plants to saline stress associated with using a hydroponic system and enable the use of saline water in semi-arid regions. In this context, this assay aimed to evaluate the impact of the foliar application of SA on mitigating salt stress effects on Japanese cucumber cultivated in a hydroponic system. The experiment was carried out in a protected ambient (greenhouse), using the Nutrient Film Technique—NFT hydroponic system. A completely randomized design was performed in a 4 × 4 split-plot scheme, with four levels of electrical conductivity of the nutrient solution—ECns (2.1, 3.6, 5.1, and 6.6 dS m −1 )—considered as plots and four SA concentrations (0, 1.8, 3.6, and 5.4 mM), regarded as subplots, with four replicates and two plants per plot. An increase in the ECns negatively affected the physiology, production components, and post-harvest quality of cucumber. However, the application of SA to leaves at concentrations between 1.4 and 2.0 mM reduced the deleterious effects of saline stress and promoted an increase in the production of and improvement in the post-harvest quality of cucumber fruits.

Suggested Citation

  • Valeska Karolini Nunes Oliveira & André Alisson Rodrigues da Silva & Geovani Soares de Lima & Lauriane Almeida dos Anjos Soares & Hans Raj Gheyi & Claudivan Feitosa de Lacerda & Carlos Alberto Vieira , 2023. "Foliar Application of Salicylic Acid Mitigates Saline Stress on Physiology, Production, and Post-Harvest Quality of Hydroponic Japanese Cucumber," Agriculture, MDPI, vol. 13(2), pages 1-24, February.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:2:p:395-:d:1061306
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    References listed on IDEAS

    as
    1. Allysson Jonhnny Torres Mendonça & André Alisson Rodrigues da Silva & Geovani Soares de Lima & Lauriane Almeida dos Anjos Soares & Valeska Karolini Nunes Oliveira & Hans Raj Gheyi & Claudivan Feitosa , 2022. "Salicylic Acid Modulates Okra Tolerance to Salt Stress in Hydroponic System," Agriculture, MDPI, vol. 12(10), pages 1-24, October.
    2. Zhang, Yuehong & Li, Xianyue & Šimůnek, Jirí & Shi, Haibin & Chen, Ning & Hu, Qi & Tian, Tong, 2021. "Evaluating soil salt dynamics in a field drip-irrigated with brackish water and leached with freshwater during different crop growth stages," Agricultural Water Management, Elsevier, vol. 244(C).
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